Johansson buys Baker portrait

Scarlett Johansson can't get ex-boyfriend Josh Hartnett out of her mind - she has just bought a portrait of music legend 'Chet Baker', who the actor will play in a new film.

The actress, who is now dating another actor, Ryan Reynolds, tracked down a William Claxton photograph of the late trumpeter to Los Angeles art-space Morrison Hotel Gallery - and bought it.

A source said: "She knew exactly what she wanted and explained she had been looking for the print for some time."

Hartnett will play Baker in new movie 'The Prince of Cool'.